Photocopied manuscript.

Reprint. Included is a memorandum from Cock to Rosemary Harvey, Archivist at the John Innes Centre, enclosing a copy of his letter to the Editor of 'The Observer'. The letter was published in part as 'Mendel's Experiments', 16 March 1980, in response to an earlier article, a copy of which is also enclosed.

Photocopy of printed article.

Reprint.

First set: 3pp inscribed 'Sex 1913 IV' on first page. Second set: 4pp inscribed 'Sex 1913 VI' on first page.

?Proof copy.

One letter only from Starling to Bateson, 1906, concerning experiments of G.P. Mudge.

Photocopied pages from 'Gardeners' Chronicle' containing reports on lectures from 1912.

Correspondence re later editions of Bateson's book (first published by Cambridge University Press in 1909). Included are the following: correspondence to Bateson concerning points appertaining to the text; two letters of R.C. Punnett, 1930, one of which is to Beatrice Bateson, re corrections to the text; cuttings of reviews of various editions of the book.